Check out example codes for "how to add a left margin in css". It will help you in understanding the concepts better.

Code Example 1

<html>
   <head>
   </head>

   <body>
      <p style = "margin-left: 15px; border:1px solid black;">
         This is a paragraph with a specified left margin
      </p>
      
      <p style = "margin-left: 5%; border:1px solid black;">
         This is another paragraph with a specified top margin in percent
      </p>
   </body>
</html>

Learn ReactJs, React Native from akashmittal.com